Adding ability to set kube config from a dict.

[vishnu667]

Added a function called load_kube_config_from_dict(), adding the ability to set the ~/.kube/config file from a dict.

Required where kubeconfig is stored externally and saving to disk is not an option.

Usage

import yaml
import kubernetes
from os.path import expanduser
config_dict = yaml.load(expanduser("~") + "/.kube/config")
kubernetes.config.load_kube_config_from_dict(config_dict)

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[vishnu667]

/assign @yliaog

[yliaog]

please add tests for the change to kube_config_test.py

[codecov-io]

Codecov Report

Merging #195 into master will decrease coverage by 0.14%.
The diff coverage is 84.78%.

@@ Coverage Diff @@## master #195 +/- ##
==========================================
- Coverage 92.69% 92.54% -0.15% 
==========================================
Files 13 13 Lines 1519 1557 +38 ==========================================
+ Hits 1408 1441 +33 - Misses 111 116 +5 

Impacted Files	Coverage Δ
config/__init__.py	100.00% <ø> (ø)
config/kube_config.py	83.29% <76.19%> (-0.20%)	⬇️
config/kube_config_test.py	95.41% <92.00%> (-0.18%)	⬇️

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[vishnu667]

@yliaog I've added Some test cases, they are similar to the load_kube_config test cases.
Instead of passing the yaml files I've passed them as a dictionary.

[codecov-commenter]

Codecov Report

Merging #195 into master will decrease coverage by 0.03%.
The diff coverage is 87.80%.

@@ Coverage Diff @@## master #195 +/- ##
==========================================
- Coverage 92.69% 92.65% -0.04% 
==========================================
Files 13 13 Lines 1519 1552 +33 ==========================================
+ Hits 1408 1438 +30 - Misses 111 114 +3 

Impacted Files	Coverage Δ
config/__init__.py	100.00% <ø> (ø)
config/kube_config.py	83.29% <76.19%> (-0.20%)	⬇️
config/kube_config_test.py	95.76% <100.00%> (+0.16%)	⬆️

---

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[roycaihw]

/cc @yliaog

[yliaog]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: vishnu667, yliaog

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